Exercise: Magnetism And Electromagnetism

Questions for: Magnetism And Electromagnetism

Permeability is the inverse equivalent of which electrical term?
A:
Voltage
B:
Current
C:
Resistance
D:
Conductance
Answer: C
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Reluctance in a magnetic circuit is analogous to current in an electrical circuit.
A:
True
B:
False
C:
D:
Answer: B
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A relay is an electromagnetically controlled mechanical device in which electrical contacts are opened or closed by a magnetizing current.
A:
True
B:
False
C:
D:
Answer: A
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Ampere-turn is the unit of magnetomotive force (mmf).
A:
True
B:
False
C:
D:
Answer: A
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The tesla is the unit of magnetic flux.
A:
True
B:
False
C:
D:
Answer: B
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